Product Name: Full Function 100W Alarm Amplifier Car Electronic Siren for Police Ambulance (SLS-171) Model NO.: SLS-171 Usage: Auto Type: Aluminum Alloy Trademark: CE Transport Package: Carton Box Origin: China HS Code: 8531809000 Product Description Specifications:Full function 100W Alarm Amplifier car electronic Siren for Police Ambulance (SLS-171)ModelSLS-171TypeElectronic SirenPower100wWorking Voltage12V/24VTone characteristicWAIL1,WAIL2,YELP,H-LO1,H-LO2,PIERCEVoice enlargesSpeaker sensitivity 50mv,output volume can be adjustedG.W(kg/pc)6kgPacking(mm/ctn)360*110*70Warranty1 year Features:1.Monolithic integrated circuit in steadier performance2.Tone characteristic:WAIL1,WAIL2,YELP,H-LO1,H-LO2,PIERCE. 3.Can control the siren , lightbar and expanded lights.4.Support traffic advisor function.5.Can set up and store your favorite modes .6.Voice enlarges:Speaker sensitivity 50mv,output volume can be adjusted. 7.Have the indication lights about the lightbar flashing modes.8.Support the external triggering function of steering wheel. 9.Have the media amplifier function.10. Have a key removel function. Detailed Images: